The act of suddenly ceasing all communication with someone the subject is dating, but no longer wishes to date. This is done in hopes that the ghostee will just "get the hint" and leave the subject alone, as opposed to the subject simply telling them he/she is no longer interested. Ghosting is not specific to a certain gender and is closely related to the subject's maturity and communication skills. Many attempt to justify ghosting as a way to cease dating the ghostee without hurting their feelings, but it in fact proves the subject is thinking more of themselves, as ghosting often creates more confusion for the ghostee than if the subject kindly stated how he/she feels.

Carmen: How was your second date with Kyle?
Beth: I thought it went well, but I've texted him a couple of times since then and he's been ghosting me.
Carmen: What? I thought he was more mature than that.

The Urban Dictionary T-Shirt

Ghosting, or "to ghost" is The act of one or more dead players spectating an alive enemy player, with the intent of revealing his or her actions or location to their alive comrades, giving them an unfair situational advantage. This is achieved usually through a voice chat program, such as Ventrillo, or an IRC client.

Ghosting may also be referred to as as "Venting" in popular games like Counter-Strike. The term derives from the most popular method of ghosting in Counter-Strike, which is to use the program Ventrillo, "venting" is short for "ventrillo-ing" meaning Using Ventrillo to ghost

"WTF? that douche nozzle is totally ghosting with one of this friends. He was shooting at me, before he even saw me and he seems to know every location of our teammates!"

"Wow, this guy is predicting the future......I think he might be Venting with his guild"